Question 12110
7(9q-3r):  first multiply 7 by 9q, then 7by -3r
+5(-8q+2r):  multiply 5 by -8q, then 5 by 2r
add up the like terms


7(9q-3r)+5(-8q+2r)
63q-21r -40q+10r
23q-11r